Misaki has dreamed to be had by Michiru, so much that she would die for it. Knowing that he is a player, she goes to find/meet him at a bar. She gets had by Michiru. But after that, is it over? Or will he still remember her?
"The beautiful and most mysterious poison 'flower'...is tempting every part of me..." Misaki loved him from the bottom of her heart... because she loved him... and longed for him... but now Misaki is slowly losing hold of Michiru...!?

A kind hearted guy who grows up eating apples and whose parents own an tartlet cafe, wants to be the ultimate gang leader. A villainous girl who was brought up in a family of gangsters wants to be the owner of a tartlet shop! How will the pair cross one another's path with their dreams on the opposite party?

Miu Sakurai, age 15, attends a Catholic school where she prays every day for her admired Shion Amamiya to return her love. When that doesn't work, she places her faith in a book of magic and tries casting one of its spells. However, it's not love that manifests... it's Satan! "The recompense for the contract to grant your wish is your virginity," he tells her, and this is Miu's virgin crisis!
(Source: ShoujoMagic)Included one-shots:
Volume 4: Satanic Honey and Satanic Cohabitation

Aine never wanted to be a writer; she just created some erotic song lyrics for the sake of entering a contest. When she bumps into a man she doesn't know and looses the lyrics, she thinks she'll never see them again, but she thought wrong! He turns out to be Sakuya, a famous rock vocalist known for his sexy persona and lyrics. When he invites Aine to be his new lyricist, she finds herself quickly sucked into the harsh world of showbiz... and the even harsher world of falling in love with a guy that millions of girls love just as much!

When Akira announces he was a boy in the first book "Ai wo Utau Yori Ore ni Oborero" so does the fact Akira goes to Dankaisan the boys school next to St. Nobora (Mizuki's school) Things start to get rough when pressure against Mizuki dating a boy from that school rise.
(Source: MU)

There's a rumor that high school freshman Aki is involved with Masaya, a candidate for student body president next term. Aki thinks of Masaya just as her best friend, but to make sure of the matter, Masaya's younger twin brother Naoya appears! Aki begins to be seduced by Naoya's forceful manner...

Then one day, Masaya collapses. When Aki goes to wish him well, she's relieved to see that he's okay. While she's there, though, Naoya asks her out on a date, and he's being much gentler with her than usual. Aki musters up her courage and tries to tell Naoya how she feels, but not only does Naoya do an about-face and command Aki to date Masaya instead, but another girl confesses love to Naoya right in front of her!? What's Aki going to do...??

-- ShoujoMagic

One day while walking home from her job, Kurumi Akino finds a wounded young man, and saves his life. He mysteriously dissapears after that, and leaves only the name Hakuron?. Next thing she knows she's been kidnapped from her school, and is on a private jet with that man, heading to China. It turns out she saved the life of the most infamous mobster in Hong Kong, and he wants her to stay with him.

You can find A Tale of Happier Times (v06 extra) in the anthology Motto Oshiete.

WARNING: This series contains strong "consensual rape" situations, strong language, scenes of graphic sex, rape, violence, murder, suicide, glorifies the mafia and black market. It is recommended that you be the legal age of consent in your country to view this story.

Himeno's chest will hurt if any boy touches her because she has the diamond of the heart. However, when she was young, she befriended two boys -- the gentle Mamoru and the blunt Keigo -- who are able to touch her without harming her. Without knowing about the diamond of the heart, both Mamoru and Keigo promised to protect Himeno. When some people threaten to take Himeno's heart, who else will protect her but her knights?
(Source: MU)

From Shoujo Manga Maniac:
Ruka's a junior high student in love with her father's assistant, Fumi-sempai. She wants to become an adult quickly because everyone sees her as a little kid! But what would happen if she actually became an adult with the help of a time machine?

Renjouji Kiriya holds the coveted position of the number 1 ranked host at a high-class host club "Chateau de l'Amour" in Tokyo. The Chateau de l'Amour specializes in providing the company of beautiful, cultured men to female customers. Few people know that the popular Kiriya is actually Yamada Kotarou, a boy from Nagasaki who came to Tokyo to find a way to repay his parent's debt.

Some of the other hosts, jealous of his position, are determined to get past his perfect facade to discredit him. Kiriya will have a hard time stopping them, especially after a former customer dumps an adorable 5-year-old girl on him, claiming he is the father. The only thing that could make this situation more difficult would be the arrival of his Nagasaki girlfriend Miharu, who knows nothing of his career as a host...